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Finding the Fourth Proportional to 93,131.20, 139,702.20 and 26,576.20

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Solution

The fourth proportional to 93,131.20, 139,702.20 and 26,576.20 is: 39,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,131.20 : 139,702.20 = 26,576.20 : x
  2. Step 2: Convert to fraction form
    93,131.20/139,702.20 = 26,576.20/x
  3. Step 3: Cross multiply
    93,131.20x = 139,702.20 × 26,576.20
  4. Step 4: Simplify right side
    93,131.20x = 3,712,753,607.64
  5. Step 5: Solve for x
    x = 3,712,753,607.64/93,131.20
  6. Step 6: Final answer
    x = 39,865.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.